This was something I have been working on as a way to explore the possibilities of procedural textures in Cycles. This is all 100% procedural, so no external images were used as part of this Material.
I went through many tests before I reached a result I was happy with. Because it is a procedural Material, you can adjust it as you like.
I used an asset from tuqueque's b.m.p.s' Material Preview Scene, which can be found here: http://blenderartists.org/forum/showthread.php?151903-b-m-p-s-1-5!
If you were referring to the mesh I used to preview the material, it is not mine, it is by tuqueque. I left a link for download in my description. I'm glad you liked it.
very cool model - would probably look good 3d printed! how about uploading it to Sketchfab, so we can interact with it!
Its a web platform for publishing your 3D models interactively, anywhere online - like Youtube, but for 3D models.
And we're partnered with the guys here at Blendswap, so you can embed the Sketchfab viewer right here next to your photos!